Chains on the bike complete several tasks. On the one hand, they transfer the driver's power to the rear wheel and, on the other hand, they ensure a clean and fluid gear change in derailleur gears. However, if you have a bicycle with hub gear and coaster brake hub, chains will also transfer the braking force to the rear hub. In order to ensure that your bicycle chain can reliably perform the required tasks despite the effects of the weather and almost permanent loads, chain manufacturers attach particular importance to continuous further development. High-strength materials and coatings provide long-lasting enjoyment of cycling with proper care and regular maintenance. When buying a chain, make sure that it is suitable for the appropriate number of gears.